The Welch Regiment, like many others in the British Army, wore a variety of types of badges. This was especially true during the First World War when several battalions were formed. In addition to the three regular battalions, the 1st, 2nd and 3rd (Service), the regiment had 33 volunteer battalions raised for service on the Western Front and the Middle East.
Admittedly, one, the 25th, was operative for only 20 days!
This large number of battalions necessitated some variation in dress and badges.

Below are two badges conforming to the description of the regimental badge for officers (single metal, bronzed) - the Prince of Wales crest and the Regimental name - but they are slightly different. The one at the Upper Right is a standard cap badge for all officers of the Regiment wearing service dress in the First World War. The one at the Upper Left has a slightly different shape, especially in the extension of the crests scroll. It is also fitted to the uniform in a manner different from the normal. It has three sharpened, flexible pins on the rear, which are designed for soft cloth. This badge was worn by officers of the 6th Battalion of the Welch Regiment during World War One, on their field service jacket collars. Since this Battalion was a Territorial Battalion, a separate T was pinned below it. On the shoulders of the jacket a twisted cord of red, green and white, the national colours, was affixed. Rank designations were placed on the cuff at this time.

Below the badges are two greatcoat buttons.
The one at the Lower Left is World War One vintage,
and the one at the Lower Right, from World War Two.